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1·At dawn, dense fog overcasts Pudong. All the towering buildings are sleeping under its veil.

凌晨，浦东看上去灰蒙蒙一片，那是迷雾笼罩的缘故。

2·These marten overcasts are of good quality and nice colour, they are also tastefully packed. They will surely sell well.

这批貂皮大衣质量高，成色好，包装精致，销售起来一定顺利。

(1)overcast sky阴天